Plumbing, is essential for the ongoing health of your aquarium. The configuration of tubing, fittings, valves, joints, performs the vital task of transporting water from your aquarium to your filtration unit(s), then back. This article explains how.

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Standard Threaded Bulkhead Fittings 1/2&quot; Color: Black
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Great bulkhead
This bulkhead was exactly what I needed for my aquarium. Its threads allow its use with PVC tubing available at a hardware store. I used some Teflon tape, andI had no problems with leaks.
It did not fit perfectly into the 1-1/8" hole I drilled at first, but after I enlarged the hole slightly by pushing the hole saw against the sides, it fit well.
February 1, 2011

2015-07-30T12:25:48.983Z

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(5 Questions : 7 Answers)

Product Q&A

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In looking at your standard bulkhead fitting, the outside is threaded and the inside at one end is slip fitted. Which end is slip fitted the top inside of the picture or the bottom part where it narrows? This is important as I need the top part slip fitted and need to find one.

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Answers

Think outside is always threaded, standard bulkhead should be slip/glue joints on both inside connections(top and bottom). Double threaded bulkheads would be threaded inside and out. I do believe they make weird ones that are slip one side threaded other side but those would be labeled that way. The standard is slip on both inside connections.

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Thank you for your question. Please feel free to contact our Customer Service Department at 1-800-443-1160. You can also email them at CustomerService@FosterAndSmithAquatics.com.

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Answers

Thank you for your question. I reached out to our fish team for help with it, and our specialist replied with the following:

Item #18981 and item #18982 are about 3-1/2” in length, so those would be the only ones that would be able to go through the 2” thick piece of wood. Whether or not there is enough of the bulkhead to thread tubing to will depend on the other plumbing materials the customer is using.

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Description:
Hard plastic slip x slip bulkheads with rubber
gasket Threaded on outside; smooth on inside for slip fitting on both ends Great for use with wet/dry filters and sump systems in freshwater or marine setups Hard plastic bulkheads with ...